Electronics Forum | Thu Feb 25 03:37:25 EST 2010 | xps
Sorry, but I don't know this brand. Anyway pay attention, because if the chemistry is resin based, is difficult to clean and the residuals may be hygroscopic. So, I only can suggest you to read the data sheet and follow the instructions by the solder
Electronics Forum | Thu Feb 25 15:24:58 EST 2010 | jdumont
We use the OM-5100 and wash it with relatively good results. Just dont let it sit longer than a few days before wash. We've used Zestron AC200 and A-250 in a batch cleaner set to 140 wash temp for 8-10 min @ the recommended concentrations. We have h
Electronics Forum | Thu Feb 25 10:21:49 EST 2010 | jdumont
My guess would be that the adhesive used on the dots contains silicone. We use 1B73 which is also acrylic and it hates silicone. We use silicone RTV to permanently mask around some connectors and unless its fully cured before coating it will cause l
Electronics Forum | Sat May 15 11:27:26 EDT 2010 | davef
We'd expect both OSP poor wetting and improper reflow recipe to show-up in more places than just this one component. But if those are the only choices, we'll go for 'wrong solder paste.' Ooops, that's not one of the choices. Ok, OK, we'll take poo
Electronics Forum | Fri Dec 17 07:02:00 EST 2010 | dilogic
Does anybody know is EPC9 plug-compatible with EPC5? I got one brand new EPC9, but can't bring USOS up. OS/2 boots, but then hangs-up during USOS initialization. I've browsed UIC archives, but can't find any relevant document, even if there exist one
Electronics Forum | Fri Dec 17 09:04:17 EST 2010 | wolverine
We have an older model CP40-LV that will start out the day with blurry and double vision, then after about twenty minutes of just idling, the vision slowly improved until the machine could find the board fiducials and do a passable placement job. Th
Electronics Forum | Mon Feb 08 14:08:08 EST 2010 | sparky_
Greetings, We are looking to purchase equipment to rework / repair our circuit boards with BGAs. Our newer boards are starting to have more and more BGAs. Is there any information that "ranks" BGA rework stations? - a kind of a consumer reports for
Electronics Forum | Thu Feb 11 15:07:49 EST 2010 | hegemon
With regards to the rework, size and mass of the PCBs is important, in addition to the size of the components that are to be reworked. You might be in the game with $6K (APE Chipmaster Hot Air machine with Preheater or similar setup) if you have sma
Electronics Forum | Tue Feb 23 16:45:36 EST 2010 | dyoungquist
Davef is right on as usual. We are doing exactly what you do. Some smt with no clean paste then the plate through connectors on our selective solder machine using water soluble flux. We then clean with a ultrasonic water process. We do see the re
Electronics Forum | Thu Feb 25 07:37:42 EST 2010 | pcbrown
We are using Humiseal 1B31 and polyester dots for masking. We are spraying this in a Binks sprayer mixed at almost 1:1 with 521 thinner. Whe are seeing the coating creating thin halos around the poly dots as if the dots are "rejecting" the coating. T
